Question

o. solve for x

Explanation:

Step1: Find angle at U in triangle

Angle \( \angle AUS \) is a straight line, so \( \angle TUS = 180^\circ - 123^\circ = 57^\circ \).

Step2: Sum of angles in triangle

Sum of angles in a triangle is \( 180^\circ \). Let \( \angle T = x \). So \( x + 57^\circ + 69^\circ = 180^\circ \).

Step3: Solve for x

\( x = 180^\circ - 57^\circ - 69^\circ = 54^\circ \).

Answer:

\( 54^\circ \)